Texas Instruments. BQ2025 Single Wire Serial Interface for the Apple Lightning Cable. Full Circuit Analysis

Transcription

1 Texas Instruments BQ2025 Single Wire Serial Interface for the Apple Lightning Cable Full Circuit Analysis 1891 Robertson Road, Suite 500, Ottawa, ON K2H 5B7 Canada Tel: Fax:

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3 Overview Introduction Brief Design Overview Component Descriptions Device Summary Figures To view, please click on the appropriate bookmark in the panel on the left Package Photograph Apple Lightning Cable X-Ray Die Markings Die Photograph Top Metal Layer Die Photograph Metal 1 Layer Die Architecture Schematics Top Level Diagram Internal Voltage Generator Programmable Voltage Divider Comparator Voltage Reference and Detector I/O Driver Input Buffer Registers S_LAS_10_ S_LAC_10_ S_TRINOT23_E9_E6L Voltage Generator S_INV_38L10_5L S_INV_42L10X2_5L88

4 9.0.0 Internal Voltage Generator Internal Voltage Generator Bias Generator ADJ_RES_ VCO Bias Generator Programmable Resistor Clock Generator SDQ Communications Controller BUFTREE BUFTREE_ Shift Register Control NAND Buffers Buffers NOR Register Block Latches Control Logic Control Logic BLOCK_ Control Logic Control Registers FREQDIV_2B Logic NAND Shift Registers Shift Registers Control Logic Counter Control Logic Control Logic Counter Control Registers Control Registers 1

5 Control Registers Control Registers Latches CLKTREE Control Registers Control Registers Control Logic NAND Control Logic OA B Logic Cell OAOI B OAOI122122B OAOI122122B OA B Control Logic Logic Counter Control Logic Register Block Counter Control Logic REGS_3B_ UNUSED UNUSED LOGIC LOGIC COUNT_4B_ LOGIC BLOCK2S BLOCK EPROM NAND Decoder Read Access Block EEPROM Read Access Latches Decoder Address Latches Control Logic

6 MUX Block MUXes S_TRIGATE_20_ Switches MUX Circuit Control Logic Logic Voltage Selector DIFINV_22L8_14L13D Tri-State Driver DIFINV_22L8X8_E18L Tri-State Driver S_BUFDIV Input Buffer Input Buffer Decoupling Capacitors ESD ESD1 Cell Library About Chipworks

7 About Chipworks Chipworks is the recognized leader in reverse engineering and patent infringement analysis of semiconductors and electronic systems. The company s ability to analyze the circuitry and physical composition of these systems makes them a key partner in the success of the world s largest semiconductor and microelectronics companies. Intellectual property groups and their legal counsel trust Chipworks for success in patent licensing and litigation earning hundreds of millions of dollars in patent licenses, and saving as much in royalty payments. Research & Development and Product Management rely on Chipworks for success in new product design and launch, saving hundreds of millions of dollars in design, and earning even more through superior product design and faster launches. Chipworks Inc all rights reserved. Chipworks and the Chipworks logo are registered trademarks of Chipworks Inc. Contact Chipworks To find out more information on this report, or any other reports in our library, please contact Chipworks at Chipworks 1891 Robertson Road, Suite 500 Ottawa, Ontario K2H 5B7 Canada T F Web site: info@chipworks.com Please send any feedback to feedback@chipworks.com